Patent US3067162A successfully refreshed from Google Patents.
US3067162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming uniform-sized plasticized resin granules and resulting product
Assignee: STAFLEX Co Ltd
•
Filing: 1958-10-21
•
Granted: 1962-12-04
•
Expires: 1978-10-21
Abstract
No abstract record available.
Inventors
- 👤 Went Norman Henry
- 👤 Banks Lionel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:06
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215; C08J2357/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A METHOD FOR THE PRODUCTION OF UNIFORM-SIZED FREEFLOWING PLASTICIZED RESIN GRANULES CONSISTING OF PARTIALLY COALESCED PARTICLES OF VINYL POLYMER WHICH COMPRISES AGITATING FOR A PERIOD OF AT LEAST TWO HOURS AT A TEMPERATURE BETWEEN 40* AND 60*C. A MIXTURE OF AN AQUEOUS DISPERSION OF THE VINYL POLYMER IN FINELY DIVIDED PARTICLES, SAID DISPERSION COMPRISING 1 PART BY WEIGHT OF VINYL POLYMER AND FROM 5 TO 10 PARTS BY WEIGHT OF WATER, WITH AN AQUEOUS DISPERSION OF A PLASTICIZER FOR THE VINYL POLYMER TO CAUSE THE PLASTICIZER TO BE UNIFORMLY ABSORBED BY THE PARTICLES AND EVENLY DISTRIBUTED THEREIN AND TO CAUSE THE PARTICLES TO AGGREGATE AND COALESCE TOGETHER IN GROUPS TO FORM GRANULES WHICH ARE FREE-FLOWING AND OF A SUBSTANTIALLY UNIFORM SIZE, AND SEPARATING SAID GRANULES FROM SAID WATER.
Claim 2
Independent Claim
128 words
A METHOD FOR THE PRODUCTION OF UNIFORM-SIZED FREEFLOWING PLASTICIZED RESIN GRANULES CONSISTING OF PARTIALLY COALESCED PARTICLES OF VINYL POLYMER WHICH COMPRISES AGITATING FOR A PERIOD OF AT LEAST TWO HOURS AT A TEMPERATURE BETWEEN 40* AND 60*C. A MIXTURE OF AN AQUEOUS DISPERSION OF THE VINYL POLYMER IN FINELY DIVIDED PARTICLES, SAID DISPERSION COMPRISING 1 PART BY WEIGHT OF VINYL POLYMER AND FROM 5 TO 10 PARTS BY WEIGHT OF WATER, WITH AN AQUEOUS DISPERSION OF A PLASTICIZER FOR THE VINYL POLYMER TO CAUSE THE PLASTICIZER TO BE UNIFORMLY ABSORBED BY THE PARTICLES AND EVENLY DISTRIBUTED THEREIN AND TO CAUSE THE PARTICLES TO AGGREGATE AND COALESCE TOGETHER IN GROUPS TO FORM GRANULES WHICH ARE FREE-FLOWING AND OF A SUBSTANTIALLY UNIFORM SIZE, AND SEPARATING SAID GRANULES FROM SAID WATER.
References Cited (Backward Citations)
US2282037A
Cited
US2373347A
Cited
US2575553A
Cited
US2613191A
Cited
US2800463A
Cited
US2958669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |